1. What two assumptions are frequently made when estimating a cost function?
2. Describe three alternative linear cost function?
3. What is the difference between linear and nonlinear cost function? Give an example of each type of cost function?
4. "High correlation between two variable means that one is the cause and the other is the effect." Do you agree? Explain.
5. Name the approaches to estimating a cost function. Briefly describe each.